Home / 907,991.69-1,253,013.08-500,131.67

Finding the Fourth Proportional to 907,991.69, 1,253,013.08 and 500,131.67

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Solution

The fourth proportional to 907,991.69, 1,253,013.08 and 500,131.67 is: 690,173.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,991.69 : 1,253,013.08 = 500,131.67 : x
  2. Step 2: Convert to fraction form
    907,991.69/1,253,013.08 = 500,131.67/x
  3. Step 3: Cross multiply
    907,991.69x = 1,253,013.08 × 500,131.67
  4. Step 4: Simplify right side
    907,991.69x = 626,671,515,466.52
  5. Step 5: Solve for x
    x = 626,671,515,466.52/907,991.69
  6. Step 6: Final answer
    x = 690,173.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.